They really are, like according to Ian Flynn: Team Dark doesn't offically exist; they're not friends and they're barely co-workers according to Sonic Team. Something Ian himself has said he has issue with.
I wonder if Sonic Team is slowly changing its mind on some things in the canon. Apparently, the TailsTube episode where it mentioned that humans live on the mainland while the antropomorphic characters live on islands was foreshadowed on Ian Flynn's podcasts via a comment of "don't worry about Two Worlds anymore". Considering Flynn is involved in increasingly more of the franchise and the previous writer team is out, opinions may be shifting. As Fnu mentioned upthread, it's been longer from now to 2006 than it was from Sonic 06's release to the first Sonic game.
In this time of doing deep dives, I keep running into "Sonic's stupid friends" and "Sonic was never good" YouTube. Well, technically running into fan rebuttals of those comments (especially the former). I didn't realize how much I missed over the years.